Improving on Dijkstra, A* takes into account the direction of your goal. Dr Mike Pound explains.
Correction: At 8min 38secs 'D' should, of course, be 14 not 12. This does not change the result.
Dijkstra's Algorithm: https://youtu.be/GazC3A4OQTE
How GPS Works: https://youtu.be/EUrU1y5is3Y
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: http://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Tagged under: computers,computerphile,computer,science,University Nottingham,Mike Pound,Astar,A Star,Search Algorithm,Dijkstra,Path Finding,Route Finding
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